From c397d385907c9a024a7476f3716429ebfafc6192 Mon Sep 17 00:00:00 2001
From: John Edgar Park <jp@jpixl.net>
Date: Mon, 7 Jan 2019 08:07:04 -0800
Subject: [PATCH] removed debouncer.py, added library import of
 adafruit_debouncer.mpy

---
 Disc_Step_Sequencer/Disc_Step_Sequencer.py |  2 +-
 Disc_Step_Sequencer/debouncer.py           | 96 ----------------------
 2 files changed, 1 insertion(+), 97 deletions(-)
 delete mode 100644 Disc_Step_Sequencer/debouncer.py

diff --git a/Disc_Step_Sequencer/Disc_Step_Sequencer.py b/Disc_Step_Sequencer/Disc_Step_Sequencer.py
index 51229f6f..b9bec744 100644
--- a/Disc_Step_Sequencer/Disc_Step_Sequencer.py
+++ b/Disc_Step_Sequencer/Disc_Step_Sequencer.py
@@ -18,7 +18,7 @@ import audioio
 import board
 from digitalio import DigitalInOut, Direction
 from adafruit_crickit import crickit
-from debouncer import Debouncer
+from adafruit_debouncer import Debouncer
 
 #  You get 4 samples, they must all have the same sample rate and must
 #  all be mono or stereo (no mix-n-match!)
diff --git a/Disc_Step_Sequencer/debouncer.py b/Disc_Step_Sequencer/debouncer.py
deleted file mode 100644
index b65083df..00000000
--- a/Disc_Step_Sequencer/debouncer.py
+++ /dev/null
@@ -1,96 +0,0 @@
-"""
-GPIO Pin Debouncer
-
-Adafruit invests time and resources providing this open source code.
-Please support Adafruit and open source hardware by purchasing
-products from Adafruit!
-
-Written by Dave Astels for Adafruit Industries
-Copyright (c) 2018 Adafruit Industries
-Licensed under the MIT license.
-
-All text above must be included in any redistribution.
-"""
-
-import time
-import digitalio
-
-class Debouncer(object):
-    """Debounce an input pin"""
-
-    DEBOUNCED_STATE = 0x01
-    UNSTABLE_STATE = 0x02
-    CHANGED_STATE = 0x04
-
-
-    def __init__(self, pin_or_predicate, mode=digitalio.Pull.UP, interval=0.010):
-        """Make am instance.
-           :param int/function pin_or_predicate: the pin (from board) to debounce
-           :param int mode: digitalio.Pull.UP or .DOWN (default is no pull up/down)
-           :param int interval: bounce threshold in seconds (default is 0.010, i.e. 10 milliseconds)
-        """
-        self.state = 0x00
-        if isinstance(pin_or_predicate, int):
-            p = digitalio.DigitalInOut(pin_or_predicate)
-            p.direction = digitalio.Direction.INPUT
-            p.pull = mode
-            self.f = lambda : p.value
-        else:
-            self.f = pin_or_predicate
-        if self.f():
-            self.__set_state(Debouncer.DEBOUNCED_STATE | Debouncer.UNSTABLE_STATE)
-        self.previous_time = 0
-        if interval is None:
-            self.interval = 0.010
-        else:
-            self.interval = interval
-
-
-    def __set_state(self, bits):
-        self.state |= bits
-
-
-    def __unset_state(self, bits):
-        self.state &= ~bits
-
-
-    def __toggle_state(self, bits):
-        self.state ^= bits
-
-
-    def __get_state(self, bits):
-        return (self.state & bits) != 0
-
-
-    def update(self):
-        """Update the debouncer state. Must be called before using any of the properties below"""
-        now = time.monotonic()
-        self.__unset_state(Debouncer.CHANGED_STATE)
-        current_state = self.f()
-        if current_state != self.__get_state(Debouncer.UNSTABLE_STATE):
-            self.previous_time = now
-            self.__toggle_state(Debouncer.UNSTABLE_STATE)
-        else:
-            if now - self.previous_time >= self.interval:
-                if current_state != self.__get_state(Debouncer.DEBOUNCED_STATE):
-                    self.previous_time = now
-                    self.__toggle_state(Debouncer.DEBOUNCED_STATE)
-                    self.__set_state(Debouncer.CHANGED_STATE)
-
-
-    @property
-    def value(self):
-        """Return the current debounced value of the input."""
-        return self.__get_state(Debouncer.DEBOUNCED_STATE)
-
-
-    @property
-    def rose(self):
-        """Return whether the debounced input went from low to high at the most recent update."""
-        return self.__get_state(self.DEBOUNCED_STATE) and self.__get_state(self.CHANGED_STATE)
-
-
-    @property
-    def fell(self):
-        """Return whether the debounced input went from high to low at the most recent update."""
-        return (not self.__get_state(self.DEBOUNCED_STATE)) and self.__get_state(self.CHANGED_STATE)